File: vxfs_inode.h

package info (click to toggle)
linux 3.16.7-ckt2-1
  • links: PTS, VCS
  • area: main
  • in suites:
  • size: 734,120 kB
  • ctags: 2,369,605
  • sloc: ansic: 12,212,866; asm: 277,256; perl: 53,999; xml: 47,771; makefile: 30,481; sh: 8,035; python: 6,583; cpp: 5,121; yacc: 4,254; lex: 2,215; awk: 741; pascal: 231; lisp: 218; sed: 30
file content (180 lines) | stat: -rw-r--r-- 5,527 bytes parent folder | download | duplicates (26)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
/*
 * Copyright (c) 2000-2001 Christoph Hellwig.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer,
 *    without modification.
 * 2. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL").
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 */
#ifndef _VXFS_INODE_H_
#define _VXFS_INODE_H_

/*
 * Veritas filesystem driver - inode structure.
 *
 * This file contains the definition of the disk and core
 * inodes of the Veritas Filesystem.
 */


#define VXFS_ISIZE		0x100		/* Inode size */

#define VXFS_NDADDR		10		/* Number of direct addrs in inode */
#define VXFS_NIADDR		2		/* Number of indirect addrs in inode */
#define VXFS_NIMMED		96		/* Size of immediate data in inode */
#define VXFS_NTYPED		6		/* Num of typed extents */

#define VXFS_TYPED_OFFSETMASK	(0x00FFFFFFFFFFFFFFULL)
#define VXFS_TYPED_TYPEMASK	(0xFF00000000000000ULL)
#define VXFS_TYPED_TYPESHIFT	56

#define VXFS_TYPED_PER_BLOCK(sbp) \
	((sbp)->s_blocksize / sizeof(struct vxfs_typed))

/*
 * Possible extent descriptor types for %VXFS_ORG_TYPED extents.
 */
enum {
	VXFS_TYPED_INDIRECT		= 1,
	VXFS_TYPED_DATA			= 2,
	VXFS_TYPED_INDIRECT_DEV4	= 3,
	VXFS_TYPED_DATA_DEV4		= 4,
};

/*
 * Data stored immediately in the inode.
 */
struct vxfs_immed {
	u_int8_t	vi_immed[VXFS_NIMMED];
};

struct vxfs_ext4 {
	u_int32_t		ve4_spare;		/* ?? */
	u_int32_t		ve4_indsize;		/* Indirect extent size */
	vx_daddr_t		ve4_indir[VXFS_NIADDR];	/* Indirect extents */
	struct direct {					/* Direct extents */
		vx_daddr_t	extent;			/* Extent number */
		int32_t		size;			/* Size of extent */
	} ve4_direct[VXFS_NDADDR];
};

struct vxfs_typed {
	u_int64_t	vt_hdr;		/* Header, 0xTTOOOOOOOOOOOOOO; T=type,O=offs */
	vx_daddr_t	vt_block;	/* Extent block */
	int32_t		vt_size;	/* Size in blocks */
};

struct vxfs_typed_dev4 {
	u_int64_t	vd4_hdr;	/* Header, 0xTTOOOOOOOOOOOOOO; T=type,O=offs */
	u_int64_t	vd4_block;	/* Extent block */
	u_int64_t	vd4_size;	/* Size in blocks */
	int32_t		vd4_dev;	/* Device ID */
	u_int32_t	__pad1;
};

/*
 * The inode as contained on the physical device.
 */
struct vxfs_dinode {
	int32_t		vdi_mode;
	u_int32_t	vdi_nlink;	/* Link count */
	u_int32_t	vdi_uid;	/* UID */
	u_int32_t	vdi_gid;	/* GID */
	u_int64_t	vdi_size;	/* Inode size in bytes */
	u_int32_t	vdi_atime;	/* Last time accessed - sec */
	u_int32_t	vdi_autime;	/* Last time accessed - usec */
	u_int32_t	vdi_mtime;	/* Last modify time - sec */
	u_int32_t	vdi_mutime;	/* Last modify time - usec */
	u_int32_t	vdi_ctime;	/* Create time - sec */
	u_int32_t	vdi_cutime;	/* Create time - usec */
	u_int8_t	vdi_aflags;	/* Allocation flags */
	u_int8_t	vdi_orgtype;	/* Organisation type */
	u_int16_t	vdi_eopflags;
	u_int32_t	vdi_eopdata;
	union {
		u_int32_t		rdev;
		u_int32_t		dotdot;
		struct {
			u_int32_t	reserved;
			u_int32_t	fixextsize;
		} i_regular;
		struct {
			u_int32_t	matchino;
			u_int32_t	fsetindex;
		} i_vxspec;
		u_int64_t		align;
	} vdi_ftarea;
	u_int32_t	vdi_blocks;	/* How much blocks does inode occupy */
	u_int32_t	vdi_gen;	/* Inode generation */
	u_int64_t	vdi_version;	/* Version */
	union {
		struct vxfs_immed	immed;
		struct vxfs_ext4	ext4;
		struct vxfs_typed	typed[VXFS_NTYPED];
	} vdi_org;
	u_int32_t	vdi_iattrino;
};

#define vdi_rdev	vdi_ftarea.rdev
#define vdi_dotdot	vdi_ftarea.dotdot
#define vdi_fixextsize	vdi_ftarea.regular.fixextsize
#define vdi_matchino	vdi_ftarea.vxspec.matchino
#define vdi_fsetindex	vdi_ftarea.vxspec.fsetindex

#define vdi_immed	vdi_org.immed
#define vdi_ext4	vdi_org.ext4
#define vdi_typed	vdi_org.typed


/*
 * The inode as represented in the main memory.
 *
 * TBD: This should become a separate structure...
 */
#define vxfs_inode_info	vxfs_dinode

#define vii_mode	vdi_mode
#define vii_uid		vdi_uid
#define vii_gid		vdi_gid
#define vii_nlink	vdi_nlink
#define vii_size	vdi_size
#define vii_atime	vdi_atime
#define vii_ctime	vdi_ctime
#define vii_mtime	vdi_mtime
#define vii_blocks	vdi_blocks
#define vii_org		vdi_org
#define vii_orgtype	vdi_orgtype
#define vii_gen		vdi_gen

#define vii_rdev	vdi_ftarea.rdev
#define vii_dotdot	vdi_ftarea.dotdot
#define vii_fixextsize	vdi_ftarea.regular.fixextsize
#define vii_matchino	vdi_ftarea.vxspec.matchino
#define vii_fsetindex	vdi_ftarea.vxspec.fsetindex

#define vii_immed	vdi_org.immed
#define vii_ext4	vdi_org.ext4
#define vii_typed	vdi_org.typed

#endif /* _VXFS_INODE_H_ */